Because of MF (now correctly the symbol for the massive megafarad) and mf having at some time been common symbols for microfarad, the millifarad (correctly mF) is rarely referred to […]

2015, Rudy Rucker, The Ware Tetralogy, p. 345:

Tomorrow he'd be sentenced to death by electrosheet, and couple of weeks after that, they'd put him in the electrocell with the two metal walls that were a megafarad capacitor, and then the great sheet of electricity would flash across, and then a janitor would come in and sweep Willy's ashes into a little plastic box to give to Mom and Dad.